Despite being a short and free adventure game, Trick & Treat has a surprising amount of depth to it. As achievement guides already exist, this will focus more on the less-discussed aspects of the game. It is heavily reccomended you play through the true ending before viewing this guide.

Note: This guide may be incomplete. I do not have plans to add any more details at this time.

In addition to the bad ending, normal ending, and two variants of the true ending, Trick & Treat has 9 Dead Ends. These do not count as clearing the game and they don't help you get any achievements, but they are interesting to look at. Notably, these are also the only scenes that contain real blood (as the rest actually involve tomatoes).

• Dead End 1: The Halloween Dinner: On the first floor, when the dining room door asks what's for dinner, enter "Pumpkin".
  
• Dead End 2: Love Makes People Blind: In the parlor on the first floor, tell the ghost "Loves you not".
  
• Dead End 3: Please Hurry!: On the first floor, when asked to bring the red wine from the kitchen to the dining room in a minute you must let the timer run out.
  
• Dead End 4: Some Books are Nice to Read And Some People are Nice to Eat: Once in the library on the second floor, release the ominous black book from it's chains and run into it.
  
• Dead End 5: Don't Play in Dangerous Places: Inside the dungeons, walk up onto the gallows and stay there for more than two seconds.
  
• Dead End 6: An Empty Head: When deciding who to execute in the dungeon, choose either the clown or the pumpkin.
  
• Dead End 7: Rose Painted Red: Give the red doll on the third floor a present other than the red rose or red shoes.
  
• Dead End 8: Red Shoes: Give the red doll on the third floor the red shoes as a present.
  
• Dead End 9: Stopped Time: Give the clock that is only right twice a day to the rabbit on the second floor.
  
• Game Over: While barrels do some damage, you need to get damaged by the soldiers in the second floor red room to die (or you could repeatedly fail the fashion slot machine, though it would take some time). This is not technically a Dead End, but it functions similarly.

Let's face it: Some of us had to consult a walkthrough while playing this game. A few puzzles and riddles are confusing, and sometimes landing at the right answer isn't enough to understand them. Below are explanations to each of these scenarios.

Dining Hall Math Equation:
This equation shows Pumpkin*Ghost-Candy=?
If you count the pumpkins (counting yourself), the ghosts (counting the one you gave the wine to), and the bags of candy in the room, this puzzle is pretty straightforward. There are 4 pumpkins, times 3 ghosts (12), minus 7 candy bags (5)

Hidden Room Riddle:
Pay attention to the short Riddle here:
I am not a bird, I am not a cat,
Nobody except my murderer understood.
Now I am asking,
What is my biggest interest?
The key to solving this riddle is knowing who/what the speaker is. As hinted at, said speaker is a Sphinx. The first line refers to the appearance of the creature, as they are winged and cat-like. The second line refers to the fact that nobody solves their puzzles without besting them, as the Sphinx asked a riddle to many people before finally being bested by Oedipus in Greek Mythology. With this knowledge in mind, it should be apparent that a Sphinx's greatest interest is in puzzles or riddles, so the door answer is either "Puzzle" or "Riddle" (both work).

Dungeon Execution Puzzle:
Unlike most liar's puzzles of this variety, only one of the people in the room is telling a lie, while the other two are truthful. Naturally, the liar is also the murderer. The pumpkin's statement might be a bit confusing at first, but all you need to pay attention to is the fact that he says you don't need to kill the clown. The clown and skeleton both make claims of innocence, as well. To figure out the answer, you have to look at each possibility:

• If the pumpkin is the liar, that would mean you would have to kill the clown. However, there is supposed to be only one liar in the room, and if the pumpkin is lying the clown also has to be doing so. Therefore, the pumpkin can't be a liar.
  
• Similarly, the clown can't be a liar either. If the clown was a liar, you would have to kill him, making the pumpkin's statement false and you would once again end up with two liars. For this reason, he can't be a liar either.
  
• The skeleton, on the other hand, has a completely independent statement. If he's lying, it does not cause any paradoxes. Since the other two were proven innocent, the skeleton must be a liar.

Clock Riddle:
This puzzle provides two clocks, only one of which is "time": A clock that is right twice a day, and a clock that is right twice a year. If a clock is stopped on a time (say, 3:30), then it will be correct in the AM and PM of that day, therefore being right twice a day. Because of this, the clock that is right twice a day must be wrong. The other clock is a little trickier. If a clock loses one minute every day (due to being slow, as the rabbit mentions), then (through various calculations) it will only be exactly precise two times a year. For more info, refer to the miscellaneous point on the source material.

Here's some trivia and fun facts about the game!

• In two locations of the game (one in the dungeon and one on the path to the final room), examining certain spots on the wall causes an eye to appear for a mild jumpscare. This doesn't do much, but it's relatively easy to miss.
  
• Although there is no benefit to gaining all the Dead Ends besides some extra scenes, dying 10 times to Dead Ends or Game Overs (number unconfirmed) causes a spooky surprise to appear.
  
• When asked "What's for dinner?" by the dining room door, typing almost anything will lead the door to saying "Is it edible?" and redirecting the player to the kitchen. While typing "Pumpkin" nets a bad end, you also get slightly different dialogue for typing in "Human". Unfortunately, nothing interesting happens for "Tomato"...
  
• The portrait above the bookshelves in the main hall change partway through the game to reflect Richard's new, vampiric state.
  
• The clock puzzle is almost certainly based on Lewis Carroll's poem, The Two Clocks. In addition to the many references to Alice in Wonderland visible inside this area, the poem matches up perfectly with the riddle. You can read it here: http://etc.usf.edu/lit2go/112/poems-puzzles-and-stories-of-lewis-carroll/4953/the-two-clocks/
  
• Though very little romance has actually shown up so far, it seems that the pairings supported by the author are John/Amelia and Charlotte/Richard.
  
• In the library, if you release the green book, then release the evil book, and talk to the green book without dying you'll get an entertaining piece of dialogue.
  
• If you had not chosen it already, yelling "HELP!" at John near the beginning of the game will allow you to save.
  
• Supposedly, newspapers in the game suggest that Richard ordered John to murder the girls who rejected him, further implying he might have done the same to Charlotte and Amelia. If anyone can find these and/or post screenshots, I would greatly appreciate it.
  
• The prequel to the game, The Witches' Tea Party, is planned to come out this year. You can play the demo here: https://rabbitongames.itch.io/thewitchesteaparty
  
• I played this game too much.

I hope you enjoyed this guide! Here's to hoping the prequel comes out soon~